期刊
ASTROPHYSICAL JOURNAL
卷 895, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.3847/1538-4357/ab8acc
关键词
Binary stars; Close binary stars; Radial velocity; Spectroscopy; Astronomy data analysis; Bayesian statistics; Astrostatistics; Surveys
资金
- Max-Planck-Institut fur Astronomie
- NSF [AST 1616636]
- National Science Foundation [AST-1311835, AST-1715662]
- FONDECYT [3180210]
- Becas Iberoamerica Investigador 2019, Banco Santander Chile
- State Research Agency (AEI) of the Spanish Ministry of Science, Innovation and Universities (MCIU) [AYA2017-88254-P]
- European Regional Development Fund (FEDER) [AYA2017-88254-P]
- NSF Astronomy and Astrophysics Postdoctoral Fellowship [AST-1801940]
- U.S. National Science Foundation [PHY 14-30152]
- NASA through Hubble Fellowship grant by the Space Telescope Science Institute [51386.01]
- NASA [NAS 5-26555]
- Alfred P. Sloan Foundation
- U.S. Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- Brazilian Participation Group
- Carnegie Institution for Science
- Carnegie Mellon University
- Chilean Participation Group
- French Participation Group
- Harvard-Smithsonian Center for Astrophysics
- Instituto de Astrofisica de Canarias
- Johns Hopkins University
- Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo
- Lawrence Berkeley National Laboratory
- Leibniz Institut fur Astrophysik Potsdam (AIP)
- Max-Planck-Institut fur Astronomie (MPIA Heidelberg)
- Max-Planck-Institut fur Astrophysik (MPA Garching)
- Max-PlanckInstitut fur Extraterrestrische Physik (MPE)
- National Astronomical Observatories of China
- New Mexico State University
- New York University
- University of Notre Dame
- Observatario Nacional/MCTI
- Ohio State University
- Pennsylvania State University
- Shanghai Astronomical Observatory
- United Kingdom Participation Group
- Universidad Nacional Autonoma de Mexico
- University of Arizona
- University of Colorado Boulder
- University of Oxford
- University of Portsmouth
- University of Utah
- University of Virginia
- University of Washington
- University of Wisconsin
- Vanderbilt University
- Yale University
Many problems in contemporary astrophysics-from understanding the formation of black holes to untangling the chemical evolution of galaxies-rely on knowledge about binary stars. This, in turn, depends on the discovery and characterization of binary companions for large numbers of different kinds of stars in different chemical and dynamical environments. Current stellar spectroscopic surveys observe hundreds of thousands to millions of stars with (typically) few observational epochs, which allows for binary discovery but makes orbital characterization challenging. We use a custom Monte Carlo sampler (The Joker) to perform discovery and characterization of binary systems through radial velocities, in the regime of sparse, noisy, and poorly sampled multi-epoch data. We use it to generate posterior samplings in Keplerian parameters for 232,495 sources released in APOGEE Data Release 16. Our final catalog contains 19,635 high-confidence close-binary (P less than or similar to few years, a less than or similar to few
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